Acetylene-gas lamp



. UNITED STATES PAT NT Fries.

DAVID S. WILLIAMS, OF PHILADELPHIA, PENNSYLVANIA.

ACETYLEN E-GAS LAM P.

SPECIFICATION forming part of Letters Patent No. 614,592, dated November22, 1898.

Application filed December 24,1896. Serial No. 616,851. (No model.)

to be a full, clear, and exact description of the.

invention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention consists in improvements in lamps for use in connectionwith vehicles, such as bicycles, carriages, &c.

The main feature of my invention consists in the employment of simpledevices for generating and utilizing acetylene gas, as clearly shown inthe accompanying drawings, in which- Figure 1 illustrates a sideelevation, partly in section, of a device embodying my improvements, thesame being more particularly designed as a lamp for bicycles. Fig. 2 isa transverse section on the line 2 2 of Fig. 1. Fig. 3 is a detachedperspective view of the porous porcelain cup comprising the generator;and Fig. 4 is an enlarged side elevation, partly in section, of the lidor cover of the generator, with a burner of special construction mountedthereon and a device depending from the cover through which the gaspasses before entering the burner.

Referring now to the letters of reference upon the drawings, Arepresents a spun-metal cylinder which forms the outer wall of thegenerator, and A is the hood and chimney of the lamp, which arepreferably movable from the portion A. The generator 13, containingcalcium carbid comprises a cylinder formed of baked clay, madeexceedingly porous, provided with a series of holes (7 near the top andhaving a flanged portion l), by means of which the generator issuspended in the cylinder A. Thusthere is formed an annular space I)between the portions A and B.

At the bottom of the cylinderA is attached a pipe 0, communicating witha reservoir D, containing water. A screw-cap 01 covers the top of thereservoir and is provided with a vent-pipe d, and at the lowest pointupon the pipe 0, I place a screw-cap c, which serves to discharge thewater from the generator cle may be secured to the cover A by lugsdepending therefrom or any other desirable means, so as to be readilyremovable for the purpose of inserting or removing the absorbent mediumcontained therein. -At the bottom of the receptacle are arranged aseries of holes through which the gas which has been generated may morefreely pass. Within the said receptacle I prefer to place a smallquantity of calcium carbid, although any absorbent may suffice for thepurpose of taking up the moisture contained in the gas passing from thegenerator.

The burner Gr comprises a cap G, into which is inserted a tip 9. Atapered plug G forming part of the cap, constitutes the valve whichrests in the seat g in the pipe G The cap G is provided with a handleG5, by which the flow of gas to the burner may be regulated.

The operation of my device is as follows: The calcium carbid is placedin the receptacle B, which I term the generator, and the cover, with thedepending receptacle containing carbid, is screwed down, a rubber ringbeing placed between the same and the top of cylinder A. The cap at isremoved from the reservoir D, and the latter is filled with water, whichpasses through the pipe 0 and enters the annular space between the innerand outer portions of the generator. As the water rises it percolatesthrough the porous material and acts upon the carbid but if the supplyof water is not sufficient to generate the proper quantity of gas instarting the water rises and flows through the holes I) near the top ofthe generator and a generation of gas immediately follows. As the gasaccumulates it displaces the water, forcing it out of the annular spaceinto the reservoir D, the air in the reservoir passing to and from theslates same through the vent-pipe d. A current of air to the gas-jet issupplied through openings a at the bottom of the hood, the products ofcombustion passing out at the top through openings (0 and a; but as thisportion of the device may be constructed after any of the Well-knownventilating-hoods it is not thought necessary to go into further detailwith regard to its construction.

Having now described my invention, what I claim, and desire to secure byLetters Patent, is

1. An acetylene lamp or lantern comprising an outer receptacle and aninner receptacle,

the latter formed of porous earthen material,

a flange formed upon the top of the inner receptacle, by which the sameis suspended from the outer receptacle, a series of holes arranged nearthe top of the inner receptacle, a reservoir, a pipe connecting the samewith the outer reservoir of the generator and a discharge-openingarranged in said pipe, substantially as specified.

2. An acetylene lamp or lantern comprising an outer receptacle and aninner receptacle, the latter formed of porous earthen material, a cap orcover adapted to the outer receptacle, a depending receptacle formed ofporous earthen material suspended from said cap and being interposedbetween the generator and discharge-pipe mounted upon the top of saidcap, a reservoir and a pipe connecting said reservoir with the outerreceptacleof the generator, substantially as specified.

8. A11 acetylene lamp or lantern comprising an outer receptacle and aninner receptacle, the latter being formed of porous earthenware materialadapted to receive the material for generating the gas, and having aflanged top by means of which it is suspended from the outer receptacle,a series of holes formed on the inner receptacle near the top, ascrewcap or cover adapted to a threaded portion of the outer receptacle,a porous receptacle depending from said cap or cover, a burner mountedthereon, provided with a screw-cap and valve for regulating the flow ofgas, a reservoir for containing water and a pipe leading therefrom tothe outer receptacle of the generator, substantially as specified.

Al. An acetylene lamp or lantern comprising an outer receptacle forcontaining water and an inner receptacle adapted to receive the materialfor generating the gas, the latter being formed of porous earthenmaterial and provided with a flanged top by whichmeans it is suspendedfrom the outer receptacle of the generator, a screw-cap or coverthreaded to the top outer receptacle, a depending receptacle carriedthereby, the same being formed of porous earthen material, a pipeleading from said cap or cover, a burner threaded to said pipe andprovided with a valve for regulating the discharge of gas, a handlesecured to said burner, a chimney inclosing said burner, detachablysecured to the generator, a hood formed upon said chimney and providedwith a lens for deflection of the rays of light, a reflector secured tothe chimney in line With the burner and hood, areservoir for containingwater, a screw-cap mounted upon the top thereof and provided with avent-pipe, a pipe leading from the reservoir to the generator providedwith a discharge-opening, a screwcap adapted to said opening, and ahanger provided with arms pivoted to the reservoir and adapted tosupport the lamp, substantially as specified.

In testimony whereof I affix my signature in presence of two Witnesses.

DAVID S. ILLIAMS. lVitnesses:

WALTER PINCUS, ROBERT W. LLOYD.

